Xgard Bright | Fixed Gas Detector

Xgard Bright is a versatile detector offering flammable and toxic gas detection and oxygen monitoring, while providing ease of operation and reduced installation costs.

Choose from durable sensor options to suit your needs, such as MPSTM (10+ years), Long-life O2 (5 years) and IR sensors (10+ years) to prevent frequent sensor replacements and minimise operational expenses.

Lowering the cost of installation, the 4-wire addressable implementation drastically reduces cabling requirements. The large OLED display allows users to easily work with Xgard Bright during install, calibration and routine maintenance without the need to open the housing.

Providing analogue 4-20mA and RS-485 Modbus signals as standard, Xgard Bright comes with an Alarm and Fault relay as standard as well as optional HART communications.

Product Datasheet

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Size Aluminium enclosure:

ATEX/IECEx: 156 x 166 x 109 mm (6.1 x 6.5 x 4.3 inch)

UL: 162 x 166 x 110 mm (6.4 x 6.5 x 4.3 inch)

Stainless Steel Enclosure:

ATEX/IECEx: 165 x 166 x 105 mm (6.1 x 6.5 x 4.1 inch)

UL: 162 x 166 x 103 mm (6.4 x 6.5 x 4.1 inch)

Cable Gland Entry 2x M20 or 2x ½” NPT (Stopping plug fitted to the left-side entry)
Operating Voltage 12-30Vdc.
Power 3W max
Electrical Output 3-wire 4-20mA (Sink or Source)
RS-485 Modbus RTU
HART 7 (Optional)
Weight Aluminium enclosure:

ATEX/IECEx: 1kg (2.2 lbs)

UL: 1.5 kg (3.31 lbs)

Stainless Steel Enclosure:

ATEX/IECEx: 3.1 kg (6.8 lbs)

UL: 3.5 kg (7.72 lbs)

Enclosure Material ADC 12 aluminium alloy or 316 stainless steel
Relay Alarm 1, Alarm 2, Fault (SPDT Contacts. Rated 1A, 24Vdc)
Sounder Out High Side Switch (24V nominal, 12V minimum, 700mA maximum load)
Operating Temperature ATEX/IECEx: -40°C to +70°C (-40°F to 158°F)

UL: -40°C to +60°C (-40°F to 140°F)

Humidity 0 to 95% RH, non-condensing

Contact Crowcon for sensor operating humidity range.

Repeatability +/- 2% FSD
Zero drift +/- 2% FSD per year maximum
Ingress protection IP65/66, EN 60529
Hazloc Standards & Approvals ATEX: EN IEC 60079-0, EN 60079-1, EN 60079-31

IECEx: IEC 60079-0, IEC 60079-1, IEC 60079-31

Zone 1 and Zone 2 or Zone 21 and Zone 22

Aluminium:

Ex II 2 G Ex db IIC T6 Gb Tamb: -40°C≤Ta≤70 °C

Ex II 2 D Ex tb IIIC T80°C Db

Ex db IIC T6 Gb Tamb: -40°C≤Ta≤70 °C

Ex tb IIIC T80°C Db

Stainless Steel:

Ex II 2 G Ex db IIC T3 Gb Tamb: -40°C≤Ta≤70 °C

Ex II 2 G Ex db IIC T4 Gb Tamb: -40°C≤Ta≤50°C

Ex II 2 D Ex tb IIIC T80°C Db

Ex db IIC T3 Gb Tamb: -40°C≤Ta≤70°C

Ex db IIC T4 Gb Tamb: -40°C≤Ta≤50°C

Ex tb IIIC T80°C Db

UL: UL 1203

-40°C≤Ta≤60 °C

Class I, Division 1, Groups B, C, D T6

Class II Division 1, Groups E, F, G T6

Approvals UL, IECEx, ATEX, CE, INMETRO, ECAS, PESO, CNEx, UC, CCSA TA, MED***
EMC Compliance EN 50270, EN IEC 61326-1, EN 55011, CISPR 11, EN 61000-4
Performance UL 60079-29-1***
Zones Certified for use in Zone 1 and Zone 2 areas
Warranty 2 years on transmitter

5 years on MPS flammable and O2 Long Life sensor

2 years on IR flammable sensors

Refer to GEN067 – Warranty Periods

for other sensors

Contact SafeU Solutions for availability

Gas Sensor type Gas range Temp
range °C 
Flammable gases* MPS 0-100% LEL -40 to +75
Butane (C4H10) Infrared 0-100% LEL -40 to +60
Hydrogen (H2) Catalytic 0-100% LEL -40 to +70
LPG Catalytic

Infrared

0-100% LEL -40 to +70

-40 to +60

Methane (CH4) Catalytic

Infrared

0-100% LEL

0-100% LEL

-40 to +70

-40 to +60

Pentane (C5H12) Catalytic

Infrared

0-100% LEL

0-100% LEL

-40 to +70

-40 to +60

Propane (C3H8) Catalytic

Infrared***

0-100% LEL

0-100% LEL

-40 to +70

-40 to +60

Carbon Monoxide (CO) Electrochemical 0-25, 50, 100, 200, 250, 300, 1000, 2000 ppm -30 to +50
Hydrogen Sulphide (H2S) Electrochemical 10, 20, 25, 50, 100, 200 ppm -40 to +50
Oxygen (O2) Long Life (Lead free) Electrochemical 0-25% vol -40 to +60
Oxygen (O2) Electrochemical 0-25% vol -20 to +50
Carbon Dioxide (CO2) Infrared 0-5% vol -40 to +60
Contact SafeU Solutions for more information

Gas Sensor type Gas range Temp
range °C 
Flammable gases* MPS 0-100% LEL -40 to +75
Ammonia (NH3) Electrochemical 0-50, 100 ppm -40 to +50
Chlorine (CL2) Electrochemical 0-5, 10 ppm -20 to +50
Hydrogen Cyanide (HCN) Electrochemical 0-25 ppm -40 to +40
Hydrogen Peroxide (H2O2) Electrochemical 0-5 ppm -20 to +50
Hydrogen Sulphide (H2S) Electrochemical 10 ppm -40 to +50
Sulphur Dioxide (SO2) Electrochemical 0-10 ppm -20 to +50
VOC* PID 0-1000 ppm -20 to +60
Ozone (O3) Electrochemical 0-1 ppm -20 to +40
Carbon Dioxide (CO2) Infrared 0-5% vol -40 to +60
Contact SafeU Solutions for more information

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